Audio-Related Circuits	.
AGC System For Audio Signals
Amplifier - 8 Watts
Amplifier - 22 Watts
Amplifier - Low Distortion
Amplifier - Inverting/Non Inverting
Amplifier With Bass Boost
Active Tone Control - Three Band
Active Crossover Network
Audio Frequency Meter
Audio LED VU Meter
Audio LED VU Meter - 2
Audio Amplifier With Tuneable Filter
Audio Pre-Amplifier
Audio Pre-Amplifier - Single IC
Audio Equalizer
Audio Oscillator
Audio Fader
Automatic Fader
Bridge Audio Power Amplifier
Beat Frequency Indicator
Buffered OP Amplifier
Combined Bass And Treble Controls
Digital Volume Control
Discrete OP Amplifier
Differential Amplifier
Differential Amplifier Balanced Input
Dynamic Noise Reduction Circuit
Electrometer Amplifier With Overload Protection
Electronic Crossover Circuit
Headphone Amplifier
HI-FI Tone Control Circuit
Microphone Pre-Amplifier
Microphone Pre-Amplifier - 2
Mixer - 4 Input
Mosfet Amplifier - 230W / 400W
Noise Blanker
Panning Circuit - Two Channel
Panning Circuit - Voltage Controlled
Power Amplifier - 10 Watts
Power Amplifier - 10 Watts -- 2
Power Amplifier - 12Watts, Low Distortion
Power Amplifier - 20 Watts
Precision Attenuator - Digitally Selectable
Remote Loudspeaker
Self-Tuning AF Filter
SSB AF Filter
Stereo Amplifier
Sound Mixer / Amplifier
Subwoofer Amplifier
Single Supply OP Amplifier
Subaudible Tone Encoder
Stereo Demodulator
Sound Sensor
True RMS Detector
Tone Control
Tone Control - 2
Visual Zero Beat Indicator
Wireless Headphone Receiver
Wireless Headphone Transmitter
Wireless Speaker System
Wireless Microphone
Audio Amplifier - 3 Transistor
Surround Sound Decoder
Alarm-Related Circuits	.
Motor-Related Circuits	.
InfraRed-Related Circuits	.
Oscillator-Related Circuits	.
Computer-Related Circuits	.
Telephone-Related Circuits	.
Home / Car-Related Circuits	.
Tape Player-Related Circuits	.
Power Supply-Related Circuits	.
Touch / Voice-Related Circuits	.
Fun & Games-Related Circuits	.
Switch / Relay-Related Circuits	.
Lighting / LED-Related Circuits	.
Radio Frequency-Related Circuits	.